During WW2 an American tail gunner exited his flaming bomber at 20,000 feet with no parachute at all. Landed in a French haystack and lived.
You might be thinking of Nicholas Alkemade, a British tail gunner who fell 18,000 feet into a snowdrift in Germany in 1944, suffering a broken wrist and leg.
Alan Magee was an American ball-turret gunner who fell 22,000 feet and hit the glass roof of the St. Nazaire train station, in 1943. He was very badly injured but survived the war in a POW camp and lived to a few weeks short of 84.